The seven sacraments are drawn from the love that Jesus has for all of us as shown in his life, passion, death, and resurrection. This love is shared with us by the Holy Spirit through human ceremonies instituted by Christ.
Each sacrament is formed by words and gestures that explain what God is doing for us. The materials that we use (water, bread, wine, oil) point to the divine love of our God, who freely chooses to share his grace with us through them. Just as Christ is fully human and divine, so the sacraments have a human and a divine aspect. The sacraments are about God’s loving involvement in our lives. (excerpts from Franciscan Media Post by Fr. Don Miller, OFM )
Guided by the Holy Spirit, the Church recognizes the existence of Seven Sacraments instituted by the Lord.They are the Sacraments of Initiation (Baptism, Confirmation, the Eucharist), the Sacraments of Healing (Penance and the Anointing of the Sick), and the Sacraments at the Service of Communion (Marriage and Holy Orders). Through the Sacraments, God shares his holiness with us so that we, in turn, can make the world holier.
–-United States Conference of Catholic Bishops (USCCB)